Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Journal of Contemporary Physics (Armenian Academy of Sciences)

Excitation of Rydberg states of atoms by adiabatic transfer of populations

E. A. Gazazyan, G. G. Grigoryan, V. O. Chaltykyan

Published Jul 1, 2015• 7 citations
Publisher

Abstract

We introduce the adiabatic interaction of five-level ladder-type system with four laser pulses provided that all three two-photon detunings are equal to zero. The analytical expressions for a quasi-energy of the system under consideration and the adiabatic condition of interaction are derived. The process of effective adiabatic excitation of such a system that can be successfully applied to obtain the Rydberg atoms is analysed.

DOI
10.3103/s1068337215030032

Related papers

Four-Photon Adiabatic Excitation of Rydberg States

E. A. Gazazyan, G. G. Grigoryan, Davit Khachatryan

Propagation of four laser pulses in the five-level ladder system in the case of arbitrary intensities and the different strengths of oscillators is investigated, when one of the eigenstates of the interaction Hamiltonian is formed in the whole volume of the medium. Taking into account the first non-adiabatic correction, the equations of propagation are obtained. An analytical solution of these equations is obtained. The conditions for an effective excitation of the fifth level in the whole volume of medium and the limitations on the interaction parameters are obtained as well.

Journal of Contemporary Physics (Armenian Academy of Sciences)•Oct 1, 2018•2 citations

Alternative techniques of population transfer in multilevel systems

V. O. Chaltykyan, E. A. Gazazyan, G. G. Grigoryan +2 more

We consider a five-level atomic system (M-system) driven by four near-resonant laser pulses and study the possibilities of population transfer via different combinations of Stimulated Raman Adiabatic Passage (STIRAP) and bright-STIRAP (b-STIRAP) processes. We examine these combinations analytically and numerically from the point of view of efficiency of population transfer. It is shown, in particular, that the combination of the processes above enhances the efficiency. Analytical expressions are obtained for the quasienergies of the system in two regimes differing by conditions imposed on resonance detunings. Interaction adiabaticity conditions are analyzed. We also study the necessary successions of turning on and off of pulses which ensure efficient transfer of atomic populations. The obtained analytical results agree well with direct numerical calculations.

Journal of Physics Conference Series•Mar 14, 2012•1 citation

Pulse propagation, population transfer, and light storage in five-level media

G. G. Grigoryan, V. O. Chaltykyan, E. A. Gazazyan +2 more

We consider adiabatic interaction of five-level atomic systems and their media with four short laser pulses under the condition of all two-photon detunings being zero. We derive analytical expressions for eigenvalues of the system's Hamiltonian and determine conditions of adiabaticity for both the atom and the medium. We analyze, in detail, the system's behavior when the eigenvalue with nonvanishing energy is realized. As distinct from the usual dark state of a five-level system (corresponding to zero eigenvalue), which is a superposition of three states, in our case the superposition of four states does work. We demonstrate that this seemingly unfavorable case nevertheless completely imitates a three-level system not only for a single atom but also in the medium, since the propagation equations are also split into those for three- and two-level media separately. We show that, under certain conditions, all the coherent effects observed in three-level media, such as population transfer, light slowing, light storage, and so on, may efficiently be realized in five-level media. This has an important advantage that the light storage can be performed twice in the same medium; i.e., the second pulse can be stored without retrieving the first one, and then the two pulses can be retrieved in any desired sequence.

arXiv:1410.6647•Physical Review A•Feb 2, 2015•14 citations

Manipulation of Population Transfer to Atomic Superposition States: An Extension of Stimulated Raman Adiabatic Passage to a Four-level Ladder System

Yueping Niu, Shangqing Gong

We extend the existing theory of stimulated Raman adiabatic passage to a four-level ladder system for realizing superposition of two high-lying Rydberg states by applying a control field to couple them. We find, due to the effect of the control field, that population is completely transferred from the initial level to a superposition of the two high-lying states. Suitable manipulation of the control field and detunings makes it possible to create any coherent superposition states we desired.

Journal of the Physical Society of Japan•Aug 15, 2004•3 citations

Chirped multiphoton adiabatic passage for a four-level ladder-type Rydberg excitation

Jing Qian, Jingjing Zhai, Lu Zhang +1 more

We develop a multiphoton adiabatic passage to realize a highly efficient Rydberg excitation in a four-level ladder-type atomic system. The adiabatic passage is based on the existence of a novel quasidark state in the cascade excitation system where the frequencies of the lasers are appropriately chirped with time. We also investigate the influence of the interatomic Rydberg interaction on the passage and extend its application to the preparation of antiblockade Rydberg atom pairs in the Rydberg blockade regime.

arXiv:1501.01351•Physical Review A•Jan 23, 2015•6 citations

Numerical exploration of coherent excitation in three-level ladder systems

Xianzhou Zhang, Xiao‐Hong Li, Yang Xiang-Dong

The technique of stimulated Raman adiabatic passage (STIRAP) is used to transfer potassium atoms from the 22p state to the 21p Rydberg state through the intermediate state 22s. The results show that complete population transfer is related to pulse duration and overlap, and occurs when the pulse duration and overlap have adequate values. At the same time, population trapping is also formed. Complete population transfer can also occurs when the two-photon resonance condition ( Δ s = Δ p ) is met.

Chinese Physics•Jul 1, 2007•2 citations
We introduce the adiabatic interaction of five-level ladder-type system with four laser pulses provided that all three two-photon detunings are equal to zero. The analytical expressions for a quasi-energy of the system under consideration and the adiabatic condition of interaction are derived. The process of effective adiabatic excitation of such a system that can be successfully applied to obtain the Rydberg atoms is analysed.
Propagation of four laser pulses in the five-level ladder system in the case of arbitrary intensities and the different strengths of oscillators is investigated, when one of the eigenstates of the interaction Hamiltonian is formed in the whole volume of the medium. Taking into account the first non-adiabatic correction, the equations of propagation are obtained. An analytical solution of these equations is obtained. The conditions for an effective excitation of the fifth level in the whole volume of medium and the limitations on the interaction parameters are obtained as well.
We consider a five-level atomic system (M-system) driven by four near-resonant laser pulses and study the possibilities of population transfer via different combinations of Stimulated Raman Adiabatic Passage (STIRAP) and bright-STIRAP (b-STIRAP) processes. We examine these combinations analytically and numerically from the point of view of efficiency of population transfer. It is shown, in particular, that the combination of the processes above enhances the efficiency. Analytical expressions are obtained for the quasienergies of the system in two regimes differing by conditions imposed on resonance detunings. Interaction adiabaticity conditions are analyzed. We also study the necessary successions of turning on and off of pulses which ensure efficient transfer of atomic populations. The obtained analytical results agree well with direct numerical calculations.
We consider adiabatic interaction of five-level atomic systems and their media with four short laser pulses under the condition of all two-photon detunings being zero. We derive analytical expressions for eigenvalues of the system's Hamiltonian and determine conditions of adiabaticity for both the atom and the medium. We analyze, in detail, the system's behavior when the eigenvalue with nonvanishing energy is realized. As distinct from the usual dark state of a five-level system (corresponding to zero eigenvalue), which is a superposition of three states, in our case the superposition of four states does work. We demonstrate that this seemingly unfavorable case nevertheless completely imitates a three-level system not only for a single atom but also in the medium, since the propagation equations are also split into those for three- and two-level media separately. We show that, under certain conditions, all the coherent effects observed in three-level media, such as population transfer, light slowing, light storage, and so on, may efficiently be realized in five-level media. This has an important advantage that the light storage can be performed twice in the same medium; i.e., the second pulse can be stored without retrieving the first one, and then the two pulses can be retrieved in any desired sequence.
We develop a multiphoton adiabatic passage to realize a highly efficient Rydberg excitation in a four-level ladder-type atomic system. The adiabatic passage is based on the existence of a novel quasidark state in the cascade excitation system where the frequencies of the lasers are appropriately chirped with time. We also investigate the influence of the interatomic Rydberg interaction on the passage and extend its application to the preparation of antiblockade Rydberg atom pairs in the Rydberg blockade regime.
The technique of stimulated Raman adiabatic passage (STIRAP) is used to transfer potassium atoms from the 22p state to the 21p Rydberg state through the intermediate state 22s. The results show that complete population transfer is related to pulse duration and overlap, and occurs when the pulse duration and overlap have adequate values. At the same time, population trapping is also formed. Complete population transfer can also occurs when the two-photon resonance condition ( Δ s = Δ p ) is met.